Publishers Weekly Foucault was small and slow moving as a child, but he had a clever mind. Drawn to science as an adult, he made an incredible discovery, one that would allow him to prove the unprovable-that the Earth does indeed spin on an axis. Mortensen's prose infuses this small scientific drama with remarkable tension, while Allen's dramatically lit paintings, often organized into elegant panels, have a cinematic quality and amplify the action even further. It should enchant not only science lovers but any child who has felt awkward and dreamed big. Ages 7-9. (Sept.) (c) Copyright PWxyz, LLC. All rights reserved

(c) Copyright PWxyz, LLC. All rights reserved

School Library Journal Gr 2-4-A 19th-century figure formerly relegated to entries in collective biographies at last gets his due in a solo picture-book biography. The pendulum that bears his name, designed as proof that Earth spins on its axis, is still regarded as one of the most elegant scientific demonstrations ever. Despite this and other technical achievements, however, Foucault spent most of his short life outside the French scientific establishment. Why? A lack of advanced academic credentials for one thing, suggests Mortensen in her matter-of-fact narrative and more detailed afterword-but also, without making a direct claim, she points to evidence that he may have suffered from a spectrum disorder. Allen's digitally finished paintings mix sequential panels and larger tableaus to depict a frail, thoughtful-looking young man working alone in a tidy, shadowy workshop or showing his latest invention to small groups of marveling onlookers. Readers will marvel too, at the genius of this little-known scientific wizard.-John Peters, New York Public Library (c) Copyright 2010. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.